"The second variation is similar, but accounted for a minimum acceptable diameter of 6.46mm. The exterior row is marked 6.51 followed by 2 through 9 and the interior contains 6.4 followed by 7-9 and a 0. An arrow over a particular number substitutes for the 1. For instance, a disk with 6.51 and an arrow over the 6 would indicate a diameter of 6.56. When the diameter reached 6.59, it was replaced."

You will find Swedes marked on bore diameter, the large part of the so called disk pie on the newer disks from 9 to 6, 9 (6.49)being new and 6 (6.56) being as wore out as the armorers would allow. I have no idea why 6.46, and 7 are included, I have seen an 8 stamped but this is rare. I have never seen a disk stamped 7,8 or 9 as these would have been rebarreled. The older disks had numbers that were all possible. Anything marked 3 or over was strictly used for training. Anything over 6 (6.56) would be replaced.

The Torped overslag part tells you where the rifle shoots to point of aim in strecks using Swedish m/41 ammunition.

The small part of the pie shows the condition of the bore.
1. indicates very minor corrosion in the corners of the grooves.
2. Indicates corrosion between the lands and grooves.
3. Indicates corrosion throughout the length of the bore.
Anything worse than a 3 and the barrel would be replaced.
No arrow pointing to a number indicates basically a bore in new or perfect shape.

The Swedish armorers were very picky about bores and a number 3 marked bore is still very good. I have a number 3 bore on an m/96 that will shoot m.o.a. all day long as long as I do my part.

This site will fill you in on all stock disks. Find the home page and see just about everything you need to know about Swedes. The last few pages will school you on known serial numbers.

From Crown Jewels by Dana Jones, the bible of Swedish Mausers,The minimum calibre was set to allow a gauge with the dimensions of 6.45mm. to pass the rifling lands in the bore. The depth of the rifling was set to allow a gauge of 6.75mm. to pass in the grooves of the rifling

If that's the 1899 CG It's been through a rework. That's a beech stock and an 1899 CG should be sitting in a walnut stock with an 85 degree cut on the butt. There should be some crowns behind the triggerguard. Does one have a letter under it? With those numbers on the disk it's probably been rebarreled and a crown with a letter under it would confirm it. The barrel would have the same stamp under the wood.

I've never seen a rifle stamped with a crown and letter on the barrel without the same crown letter stamp on the stock. No doubt the stock was stamped to indicate this. I have an armorer's stock with three crowns, one with a crown and letter C, no numbers in the channel or on the hand guard. I have an m/41B with an original barrel and a replacement stock with only a Crown S. I have an 1899 Oberndorf m38 in a replacement stock with just two plain crowns. No rhyme or reason to me but I've always read that a crown and letter on the stock means a replaced barrel.